Quinone amine polymers. IX. Attempts to synthesize polyamine-benzoquinone polymers using air and oxygen as oxidizing agents

Attempts to synthesize Jeffamine D‐400 : p‐benzoquinone = 1 : 1 and later Jeffamine D‐400 : hydroquinone = 1 : 1 oligomers, using air or oxygen as the oxidizing agent, have been only partially successful. Although oligomers that yield nontacky coatings are completely precipitable in water, only abou...

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Bibliographic Details
Published in:Journal of applied polymer science 1991-05, Vol.42 (9), p.2385-2389
Main Authors: Nithianandam, V. S., Erhan, S.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polycondensation
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Attempts to synthesize Jeffamine D‐400 : p‐benzoquinone = 1 : 1 and later Jeffamine D‐400 : hydroquinone = 1 : 1 oligomers, using air or oxygen as the oxidizing agent, have been only partially successful. Although oligomers that yield nontacky coatings are completely precipitable in water, only about 25% of these products are precipitable in water while 75% remains in suspension. These polymers yield tacky coatings, which suggests that neither air nor oxygen is capable of oxidizing hydroquinone to benzoquinone, which is necessary for the formation of the polymer. Hence, most of the oligomer chains are too short to precipitate in water.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1991.070420902